鉴于目前地形沙盘制作工艺复杂、人工依赖性大、精度低的问题，结合机械科学研究总院自主研发的复杂 铸件无模复合成形技术与装备，提出了一种地形沙盘的无模切削高精度一体成形的制作方法。结果表明，通过对某地区 地形沙盘的快速制作及扫描分析，复杂铸件无模复合成形技术与装备能够实现地形沙盘快速、高精度的制作。该加工方 法适用于不同材质沙盘的加工要求。

In view of the complex manufacturing process of topographic sand table, large manual dependence and low precision, a method of making topographic sand table by patternless cutting with high precision was proposed by combining with the complicated casting patternless composite manufacturing technology and equipment independently developed by the general institute of mechanical science research. The results show that the formless composite forming technology and equipment for complex castings can make the topographic sand table quickly and accurately through the rapid production and scanning analysis of the topographic sand table in a certain area. The processing method is applicable to the processing requirements of sand table of different materials.